219892510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{2749}}^1$

素因数の和:3196

約数の個数: 32

約数和(自身を含む): 417780000

約数和(自身を除く): 197887490

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 421, 842, 2105, 2749, 4210, 5498, 7999, 13745, 15998, 27490, 39995, 52231, 79990, 104462, 261155, 522310, 1157329, 2314658, 5786645, 11573290, 21989251, 43978502, 109946255, 219892510]

約数ペア:

[(1, 219892510), (2, 109946255), (5, 43978502), (10, 21989251), (19, 11573290), (38, 5786645), (95, 2314658), (190, 1157329), (421, 522310), (842, 261155), (2105, 104462), (2749, 79990), (4210, 52231), (5498, 39995), (7999, 27490), (13745, 15998)]